2 * Process synchronisation
9 #include "debugtools.h"
12 #include "wine/unicode.h"
15 #include "ntdll_misc.h"
17 DEFAULT_DEBUG_CHANNEL(ntdll);
24 /******************************************************************************
27 NTSTATUS WINAPI NtCreateSemaphore( OUT PHANDLE SemaphoreHandle,
28 IN ACCESS_MASK access,
29 IN const OBJECT_ATTRIBUTES *attr OPTIONAL,
30 IN ULONG InitialCount,
31 IN ULONG MaximumCount )
33 DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
36 if ((MaximumCount <= 0) || (InitialCount < 0) || (InitialCount > MaximumCount))
37 return STATUS_INVALID_PARAMETER;
41 struct create_semaphore_request *req = server_alloc_req( sizeof(*req), len );
42 req->initial = InitialCount;
43 req->max = MaximumCount;
44 req->inherit = attr && (attr->Attributes & OBJ_INHERIT);
45 if (len) memcpy( server_data_ptr(req), attr->ObjectName->Buffer, len );
46 ret = server_call_noerr( REQ_CREATE_SEMAPHORE );
47 *SemaphoreHandle = req->handle;
53 /******************************************************************************
56 NTSTATUS WINAPI NtOpenSemaphore( OUT PHANDLE SemaphoreHandle,
57 IN ACCESS_MASK access,
58 IN const OBJECT_ATTRIBUTES *attr )
60 DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
65 struct open_semaphore_request *req = server_alloc_req( sizeof(*req), len );
67 req->inherit = attr && (attr->Attributes & OBJ_INHERIT);
68 if (len) memcpy( server_data_ptr(req), attr->ObjectName->Buffer, len );
69 ret = server_call_noerr( REQ_OPEN_SEMAPHORE );
70 *SemaphoreHandle = req->handle;
76 /******************************************************************************
79 NTSTATUS WINAPI NtQuerySemaphore(
80 HANDLE SemaphoreHandle,
81 PVOID SemaphoreInformationClass,
82 OUT PVOID SemaphoreInformation,
86 FIXME("(0x%08x,%p,%p,0x%08lx,%p) stub!\n",
87 SemaphoreHandle, SemaphoreInformationClass, SemaphoreInformation, Length, ReturnLength);
88 return STATUS_SUCCESS;
91 /******************************************************************************
94 NTSTATUS WINAPI NtReleaseSemaphore( HANDLE handle, ULONG count, PULONG previous )
99 struct release_semaphore_request *req = server_alloc_req( sizeof(*req), 0 );
100 req->handle = handle;
102 if (!(ret = server_call_noerr( REQ_RELEASE_SEMAPHORE )))
104 if (previous) *previous = req->prev_count;
115 /**************************************************************************
118 NTSTATUS WINAPI NtCreateEvent(
119 OUT PHANDLE EventHandle,
120 IN ACCESS_MASK DesiredAccess,
121 IN const OBJECT_ATTRIBUTES *attr,
122 IN BOOLEAN ManualReset,
123 IN BOOLEAN InitialState)
125 DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
130 struct create_event_request *req = server_alloc_req( sizeof(*req), len );
131 req->manual_reset = ManualReset;
132 req->initial_state = InitialState;
133 req->inherit = attr && (attr->Attributes & OBJ_INHERIT);
134 if (len) memcpy( server_data_ptr(req), attr->ObjectName->Buffer, len );
135 ret = server_call_noerr( REQ_CREATE_EVENT );
136 *EventHandle = req->handle;
142 /******************************************************************************
145 NTSTATUS WINAPI NtOpenEvent(
146 OUT PHANDLE EventHandle,
147 IN ACCESS_MASK DesiredAccess,
148 IN const OBJECT_ATTRIBUTES *attr )
150 DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
155 struct open_event_request *req = server_alloc_req( sizeof(*req), len );
157 req->access = DesiredAccess;
158 req->inherit = attr && (attr->Attributes & OBJ_INHERIT);
159 if (len) memcpy( server_data_ptr(req), attr->ObjectName->Buffer, len );
160 ret = server_call_noerr( REQ_OPEN_EVENT );
161 *EventHandle = req->handle;
168 /******************************************************************************
171 NTSTATUS WINAPI NtSetEvent( HANDLE handle, PULONG NumberOfThreadsReleased )
175 /* FIXME: set NumberOfThreadsReleased */
179 struct event_op_request *req = server_alloc_req( sizeof(*req), 0 );
180 req->handle = handle;
182 ret = server_call_noerr( REQ_EVENT_OP );
188 /******************************************************************************
191 NTSTATUS WINAPI NtResetEvent( HANDLE handle, PULONG NumberOfThreadsReleased )
195 /* resetting an event can't release any thread... */
196 if (NumberOfThreadsReleased) *NumberOfThreadsReleased = 0;
200 struct event_op_request *req = server_alloc_req( sizeof(*req), 0 );
201 req->handle = handle;
202 req->op = RESET_EVENT;
203 ret = server_call_noerr( REQ_EVENT_OP );
209 /******************************************************************************
213 * same as NtResetEvent ???
215 NTSTATUS WINAPI NtClearEvent ( HANDLE handle )
217 return NtResetEvent( handle, NULL );
220 /******************************************************************************
226 NTSTATUS WINAPI NtPulseEvent( HANDLE handle, PULONG PulseCount )
229 FIXME("(0x%08x,%p)\n", handle, PulseCount);
232 struct event_op_request *req = server_alloc_req( sizeof(*req), 0 );
233 req->handle = handle;
234 req->op = PULSE_EVENT;
235 ret = server_call_noerr( REQ_EVENT_OP );
241 /******************************************************************************
244 NTSTATUS WINAPI NtQueryEvent (
245 IN HANDLE EventHandle,
246 IN UINT EventInformationClass,
247 OUT PVOID EventInformation,
248 IN ULONG EventInformationLength,
249 OUT PULONG ReturnLength)
251 FIXME("(0x%08x)\n", EventHandle);
252 return STATUS_SUCCESS;